| Abbreviation | Definition |
|---|---|
| JTHS | Joliet Township High School |
| JTHS | Joliet Township High Schools |
| JTMS | Jeffrey Trail Middle School |
| JTSC | Jayme Tiomno School of Cosmology |
| JTSZ | Jeugd Theater School Zeeland |
| JVE | Jan Van Eyck Akademie |
| JVMS | Jaya Vaasavi Matriculation School |
| JVS | Joint Vocational School |
| JVSD | Juniata Valley School District |
| JWE | John Wetten Elementary School |
| JWES | James Ward Elementary School |
| JWGS | John Willmott Grammar School |
| JWSD | Joanne Whittaker School of Dance |
| JWSD | Joyce Willett School of Dance |
| JYS | Jessie Younghusband School |
| K2C | kindergarten to college |
| KAE | Kimberlin Academy for Exellence |
| KAFS | Kent Archaeological Field School |
| KAHS | Karlsruhe American High School |
| KAHS | Korea Arts High School |